Aluminum oxide Alumina powder for Electric vacuum tube shell ceramic Al2O3
item value
Classification ALUMINA
CAS No. 1344-28-1
Other Names Alumina
MF Al2O3
EINECS No. 215-691-6
Grade Standard Electron Grade, Industrial Grade, Reagent Grade
Purity 99.5%
Appearance White powder
Application electronic ceramics
Color White
Grade Industrail Grade
Density 3.5 g/cm3
Melting point 2054
Boiling Point 2980
Molecular Weight 101.96
Shape Ionische
Water Solubility Hard
Packing 25 Kg Pp Bag or plastic barrel
Sample Availiable
Premium Portland Cement Clinker / Type II and I For Cement Production And Construction
Color: Grey
Lead time (days) 30 To be negotiated
Application: Office Building
Design Style: Contemporary
Type: Cement Clinker
Hardening Feature: Rapid Hardening
HCSA BINDER is a hydraulic binder based on calcium sulphoaluminate, rather than calcium aluminates which are the basis of CALCIUM ALUMINATE CEMENT or calcium silicates which are the basis of PORTLAND CEMENT. The difference gives HCSA BINDER properties particularly suited to formulators of products such as self-leveling or self-smoothing compounds, rapid hardening screeds, tile adhesives, non-shrink grouts, rapid setting and special mortars.
Hello, we have PORTLAND CEMENT available, .
Cement Type CEM I 52,5 N
Cement Type CEM II A-L 42,5 N
Cement Type CEM II A-L 42,5 R
Cement Type CEM II B-L 32,5 N
Payment LC 100% FOB Morocco
Daily capacity: 5000 MT
We will also have Clinker available
CEM II 42,5 R fob usd ASK Placed on the market in bulk or in 50 kg bags.
CEM I 42,5 R fob usd ASK Placed on the ma ket in bulk or in 50 kg bags.
CEM I 52.5 N ask. Placed on the market in bulk or in 1500 kg big bags.
Cement Types
CEM II 42,5 R fob usd ASK Placed on the market in bulk or in 50 kg bags.
CEM I 42,5 R fob usd ASK Placed on the market in bulk or in 50 kg bags.
CEM I 52.5 N ask. Placed on the market in bulk or in 1500 kg big bags.
Supplier From -, Ethiopia. Cement
100% pure Of Cement Ethiopia is the Worlds third largest Cement Producer. Ethiopia s contributing tremendously to the Supply of Cement across the world. Portland cement. welcome in both domestic and foreign customers. Our product meets the ISO 9001 and win a lot of honor in the fiedl of building materials. Welcome to choose our product witch has best property and price proportion.
Portland (constructional) Cement is a fine powder mixture of various minerals. It is produced by mixing calcareous minerals such as chalk, limestone containing silica and alumina and heating it to 1450 deg C when it cools a clinker is formed. This clinker is then finely ground and mixed with small quantity 3-5% of gypsum which has calcium sulphate in it. The amount of gypsum controls the physical properties of the eventual concrete. Sometimes very minute quantities of pigments are also added. Cement producing processes do however vary.
TYPES OF PORTLAND CEMENT:
- OPC Ordinary Portland Cement
- Rapid Hardening Portland Cement
- Sulphate Resisting Portland Cement
- Low Heat Portland Cement
- White Portland Cement
PACKING:
- 50 Bags (Paper or Poly bags)
- 1.5 tonne bags
- 2 tonne bags
- Bulk/Loose
-CEM I 42,5 R ( Portland Cement ) TS EN 197-1:2012 System 1+
-CEM I 52,5 N (Portland Cement) TS EN 197 -1: 2012 System 1+
-CEM II / A-M ( P-LL) 42.5 R (Portland Composite Cement) TS EN 197-1:2012 System 1+
-CEM IV / B (P) 32.5 R (Pozzolanic Cement) TS EN 197-1:2012 System 1+
-CEM IV / B (P) 32.5 R â?? SR (Sulfate Resisting Pozzolanic Cement) TS EN 197-1:2012 System 1+
-CEM I 42,5 R â?? SR5 ( Portland Cement ) TS EN 197-1:2012 System 1+
Type I
General purpose Fairly high C3S content for good early strength development General construction (most buildings, bridges, pavements, precast units, etc.)
Type II
Moderate sulfate resistance Low C3A content (<8%) Structures exposed to soil or water containing sulfate ions
Type III
High early strength Ground more finely, may have slightly more C3S Rapid construction, cold weather concreting
Type IV
Low heat of hydration (slow reacting) Low content of C3S (<50%) and C3A Massive structures such as dams. Now rare.
Type V
High sulfate resistance Very low C3A content (<5%) Structures exposed to high levels of sulfate ions
White
White color No C4AF, low MgO Decorative (otherw
We OBJECTIF GROUP FRANCE products & sell all grade cement portland & clinker FOB or CIF from our own factory with 10.000 staff all buyer garde cement portland, clinker, withe cement with british standard ISO 9001